The Drainage Division of Entsorgung + Recycling Zürich (ERZ) replaces a high-pressure scavenging vehicle, which has been in operation for 12 years, with a 4-axle water recycling vehicle (WFZ). The new WFZ must be able to suck and rinse at the same time. A high maneuverability is to be ensured by a steered trailing axle. The dirty water chambers are to be constructed as big as possible. The latest emission standards must be observed or the latest drive technology (hybrid / electric) must be taken into account.

The Drainage Division of Entsorgung + Recycling Zürich (ERZ) replaces a high-pressure scavenging vehicle, which has been in operation for 12 years, with a 4-axle water recycling vehicle (WFZ). The new WFZ must be able to suck and rinse at the same time. A high maneuverability is to be ensured by a steered trailing axle. The dirty water chambers are to be constructed as big as possible. The latest emission standards must be observed or the latest drive technology (hybrid / electric) must be taken into account.